The family of a 13-year-old Oakland girl declared brain dead after suffering complications following a tonsillectomy was trying to give the girl as normal of a Christmas as possible, one day after she was declared legally dead by a judge.

The family of Jahi McMath will meet Thursday afternoon to discuss a possible appeal of a judge's decision allowing a hospital to remove her from life support, the family attorney, Chris Dolan, told NBC Bay Area.

Jahi's uncle, Omari Sealey, tweeted out that he will "pull out all the stops to make sure my little girl will have every opportunity there is for her to make a recovery."

On Christmas Day, Jahi's extended family set up a tree at Children's Hospital Oakland in Jahi's room with presents for her and her siblings.

Alameda County Superior Court Judge Evelio Grillo ruled just before Christmas Eve that the hospital could remove Jahi from the ventilator keeping her body functioning, but gave the family until 5 p.m. on Dec. 30 to file an appeal.

Jahi's family, who are devout Christians, say they believe Jahi is still alive, because her heart is still beating. The teen suffered cardiac arrest after bleeding profusely following her Dec. 9 operation to fix her sleep apnea. She was declared brain dead for the first time on Dec. 12.

Grillo based his decision on the conclusions of court-appointed Dr. Paul Fisher of Stanford University and the hospital's Dr. Robin Shanahan. A third doctor at Children's also made the same finding. All the EEGs performed showed there is no sign of brain activity.

Grillo said he had no other choice but to allow the hospital to remove the ventilator.